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oh i better mention that there is 'cut offs' for exhaust size, depending on car power.
For example
[MADE UP NUMBERS FOR EXAMPLE ONLY]
upto 170hp no bigger thatn 2".
upto 300hp no more than 2.5" etc, etc.
Most shops probably wont be able to tell you these, but there are sites with that info. If i find a site i'll post it
Jase
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TPC Mod/henchman
previous rides;
1st car EA Fairmont Ghia, extractors, exhaust
2nd EF GLi, 'custom' interior, extractors, exhuast
3rd EA Fairmont 5spd, low'd, extractors, exhuast, head
work, 3.45LSD, EL dash, interior+ El ECU
4th EB2 Fairmont, EL dash and interior, BBM, LSD etc etc
5th EB Fairmont Ghia 5L. All leather, lowered, exhaust etc
Ye, a high powered car would also produce the heat needed to get a 3” exhaust up to temperature and in itself would run hotter then most standard engines; so it would push out hotter gasses which in turn would not lose enough heat in a 3” system to cause any problems. That lil 4 cyl engine though would be freezing its balls off…
Well since all the sites I looked up on Exhaust Theory had “exactly” the same info on them ill just post the first one I found (its some good reading)
Well since all the sites I looked up on Exhaust Theory had “exactly” the same info on them ill just post the first one I found (its some good reading)
yeah thats the one... i also noticed that about 5 different sites had the exact same article. Theres a couple bits in it that are interesting and relevant.
cheers
Jase
__________________
TPC Mod/henchman
previous rides;
1st car EA Fairmont Ghia, extractors, exhaust
2nd EF GLi, 'custom' interior, extractors, exhuast
3rd EA Fairmont 5spd, low'd, extractors, exhuast, head
work, 3.45LSD, EL dash, interior+ El ECU
4th EB2 Fairmont, EL dash and interior, BBM, LSD etc etc
5th EB Fairmont Ghia 5L. All leather, lowered, exhaust etc
use a 2.5inch exhaust and 3.7/3.9 diff ratios.....
Dave.
__________________
SMOKE 'EM IF YOU GOT 'EM!!!!
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"The car is the closest thing man can create to.....something that is alive" (Founder of Jaguar Cars Pty Ltd, Sir William Lyons)
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"Can't sleep, Clown'll eat me, can't sleep, clown'll eat me"
"I am the angel of death, the time of purification is at hand"
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in other threads ive head a the jmm extractors are 1 of the best.
cats -cut off ends and get 2.5" piping welded up.
if u want mainly performance go for the 3.7's, as the first gear in the autos are long.
put on a tranny cooler if it hasnt got one already.
replace the cold air top half with either an xg/xh ute one, i forgot model but will be doin this soon, cheap and easy. as good as the ss inductions one ive heard.
after this resetting of the comp is neccesary.
twin termos of ef/els are a good upgrade, steadier temp., less fan noise and more power(dunno how much though prob around 3/4kw).
advance the timing a touch for premium or the 98ron fuels
Damn this is an old thread, very, very old. Was rather surprised to get an email saying someone had posted to it, but oh well.
Since I posted this thread back in mid 2003 I’ve done a few things to the car. One is a full 2 1/2 inch sports exhaust with high flow mufflers and a high flow sports stainless cat. A set of tuned equal length pacemaker headers, EL thermo fans, stage 2 shift kit and a sequential bonnet scoop. Oh ye, and the K&N filter. All up that alone was churning 118.6 rwkw and 683.7 nm. Not bad for an EBII i6 4L. A few other minor mods have been done since, but right now I’m about to remove the head as the gaskets gone and I’m contemplating a few things there too. All and all the car has a noticeable pull and goes fairly well off the line, not to mention a fairly distinct sound, especially when I open her right up. I’ve been told the noise coming from the intake sounds more like a jet engine going off than a car.
Diff is still to be done and will be looking at the EF BBM intake too, just not to sure how to make it work with the scoop yet, may have to get a custom box done for it. Not to mention cam and chip.
Car’s going very well at the moment. Had to replace the head on it so I took an EF head down to a rebuild shop and had it ported and polished, valves replaced, had the cam shaft re ground and a few other little things. Slight shave and bolted it on with the EF cam and gear. Not going to bother getting a cam setup until I can do the cam and chip at the same time. Still got to get it down to the dyno and have a power run done on her, but its going damn hard.
Linear Mode
